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Prescription medicine · generic available

Tamoxifen citrate

Official FDA data, not advice

Everything here comes from the U.S. Food and Drug Administration (FDA): the drug label, the NDC Directory, Drugs@FDA, recall reports and the drug shortage list. Each fact shows its source and date.

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.

In an emergency, call 911. If someone may have taken too much of a medicine, call Poison Help: 1‑800‑222‑1222.

Quick answers

What is Tamoxifen citrate used for?
The FDA-approved label (Soltamox, Mayne Pharma, November 29, 2021) says: “SOLTAMOX is an estrogen agonist/antagonist indicated: For treatment of adult patients with estrogen receptor-positive metastatic breast cancer For adjuvant treatment of adult patients with early stage estrogen receptor- positive breast cancer To reduce risk of invasive breast cancer following breast surgery and radiation in adult women with ductal carcinoma in situ (DCIS) To reduce the incidence of breast cancer in …” This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.
Does Tamoxifen citrate have a boxed warning?
Yes. The FDA label for Soltamox has a boxed warning, the FDA’s strongest warning. Read it on the full label and ask your pharmacist.
Is there a shortage of Tamoxifen citrate?
No current shortage is listed by the FDA for the products of this medicine (FDA data from October 30, 2026).
Has Tamoxifen citrate been recalled?
No recall linked to the products of this medicine appears in the FDA enforcement reports we use.
Who makes Tamoxifen citrate?
10 companies list prescription products of Tamoxifen citrate in the FDA NDC Directory, including Bryant Ranch Prepack, Aurobindo Pharma Limited and NuCare Pharmaceuticals, Inc..

What Tamoxifen citrate is used for

Quoted from the “Indications and Usage” section of the FDA-approved label.

SOLTAMOX is an estrogen agonist/antagonist indicated: For treatment of adult patients with estrogen receptor-positive metastatic breast cancer For adjuvant treatment of adult patients with early stage estrogen receptor- positive breast cancer To reduce risk of invasive breast cancer following breast surgery and radiation in adult women with ductal carcinoma in situ (DCIS) To reduce the incidence of breast cancer in …

— FDA label: Soltamox, Mayne Pharma, effective November 29, 2021. Read the full label on DailyMed →

The FDA has 14 labels for products of this medicine (different makers and forms); uses can differ between them. Check the label that comes with your own medicine.

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.

Conditions named on the label

These condition names appear word for word in the label’s “Indications and Usage” text (matched with a reviewed table). Each page lists hospitals whose own websites name the condition.

Related medical specialties

Boxed warning

A boxed warning (“black box”) is the FDA’s strongest warning on a drug label, for serious or life-threatening risks.

This label has a boxed warning. Read it on the full label →

14 of 14 FDA labels for this medicine have a boxed warning.

Forms and how it is given

Dosage formsTablet · Tablet, film coated · Liquid
RouteOral
Prescription products18 in the FDA NDC Directory
Brand namesSoltamox

What pharmacies pay (NADAC)

The National Average Drug Acquisition Cost (NADAC) is the average price U.S. retail pharmacies paid to buy one unit of a medicine (one tablet, one mL or one gram), from a monthly survey of pharmacy invoices by the Centers for Medicare & Medicaid Services (CMS). State Medicaid programs use it to pay pharmacies.

This is not the price you pay. What you pay depends on your insurance (copay or coinsurance), your pharmacy and any discounts, and pharmacies also charge for filling a prescription. Ask your pharmacist or your health plan what your price will be.

NADAC per unit for Tamoxifen citrate, by strength and form
Strength and formGeneric or brandPharmacies pay
tamoxifen citrate 10 mg
tablet
Generic $0.1321 per tablet
tamoxifen citrate 10 mg
tablet, film coated
Generic $0.1321 per tablet
tamoxifen citrate 20 mg
tablet
Generic $0.2747 per tablet
tamoxifen citrate 20 mg
tablet, film coated
Generic $0.2747 per tablet

NADAC list of November 4, 2026; these prices took effect on October 21, 2026. Shown only where a package’s NDC code matches the NADAC list exactly, and only for that exact strength and form: nothing is averaged across strengths. Strengths and forms not listed here have no NADAC price.

Source: NADAC (National Average Drug Acquisition Cost) 2026, data.medicaid.gov (CMS) →

Companies that list this medicine

Labelers in the FDA NDC Directory: the company named on the package (maker or distributor), with the number of prescription products.

FDA approval history

  • NDA: New Drug Application: how a new (usually brand-name) medicine is approved.
  • ANDA: Abbreviated New Drug Application: how a generic version is approved.
Brand and biologic applications
ApplicationSponsorApprovedLater changes approved
NDA021807
SOLTAMOX
Mayne Pharma CommrclOctober 29, 2005 4, latest April 8, 2019
2019: Labeling · 2018: Efficacy · 2015: Manufacturing (CMC)

Generic approvals (4)

Shortage status

The FDA drug shortage list does not show these products.

FDA Drug Shortages database →

Recalls

No recall linked to these products (by their NDC code) appears in the FDA enforcement reports.

Official identifiers

RxCUI (RxNorm)198240, 313195, 389230, 644304
SPL set ID of the quoted label1e6ff055-590c-41e6-9530-1fdf04cdbd02
FDA labels (SPL)14
FDA applicationsNDA021807, 4 ANDA
Active ingredients (FDA)TAMOXIFEN

Sources

  1. FDA-approved label on DailyMed (National Library of Medicine) — Soltamox, Mayne Pharma, effective November 29, 2021; via openFDA, FDA data exported October 30, 2026, retrieved October 31, 2026
  2. NDC Directory (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  3. Drugs@FDA (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  4. Drug recall enforcement reports (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 27, 2026, retrieved October 31, 2026
  5. Drug shortages (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026

openFDA data is provided by the FDA as is; it may be incomplete. Always rely on the label that comes with your medicine. FDA Enforcement Report search →

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